Icom IC-M503 Marine Radio User Manual


 
35
12
HM-134 REMOTE-CONTROL MICROPHONE
Call channel programming
q While pushing and holding [H/L],
push [DIAL] several times to select
the desired channel group (USA or
INT) to be programmed.
w Push and hold [16C] for 1 sec. to
select the call channel of the se-
lected channel group.
•“CALL and call channel number ap-
pear.
e Push and hold [16C] again for
3 sec. (until long beep changes to
2 short beeps) to enter call channel
programming condition.
Call channel number and channel
group to be programmed ashes.
r Push [Y]/[Z] to select the desired
channel.
t Push [16C] to program the dis-
played channel as the call channel.
The call channel number and channel
group stop ashing.
Optional voice scrambler
operation
ïï
Activating the scrambler
q Select an operating channel, other than Channel 16.
w While pushing and holding
[H/L], push [DUAL] to turn
the voice scrambler function
ON.
•“SCRM appears.
e To turn the scrambler func-
tion OFF, repeat step w.
•“SCRM disappears.
ïï
Programming scramble codes
There are 128 codes (00 to 127) available with UT-98 or 32
codes (01 to 32) available with the UT-112 for programming.
In order to understand one another, all transceivers in your
group must have the same scrambler code, as well as the
same scrambler unit. The scrambler code is programmed in
set mode. See pgs. 10, 16, 37 for details.
Appears when the voice
scrambler function is in use.
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